Move InheritableAttr::isInherited to Attr

git-svn-id: https://llvm.org/svn/llvm-project/cfe/trunk@124299 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/include/clang/AST/Attr.h b/include/clang/AST/Attr.h
index a6d23e5..67968fd 100644
--- a/include/clang/AST/Attr.h
+++ b/include/clang/AST/Attr.h
@@ -96,6 +96,8 @@
   SourceLocation getLocation() const { return Loc; }
   void setLocation(SourceLocation L) { Loc = L; }
 
+  bool isInherited() const { return Inherited; }
+
   // Clone this attribute.
   virtual Attr* clone(ASTContext &C) const = 0;
 
@@ -109,7 +111,6 @@
     : Attr(AK, L) {}
 
 public:
-  bool isInherited() const { return Inherited; }
   void setInherited(bool I) { Inherited = I; }
 
   // Implement isa/cast/dyncast/etc.